Graphical user interface for computer screen



The sole FIGURE is a front view of our graphical user interface for a computer screen showing our new design.

The broken line showing of a computer screen is included for the purpose of showing environmental structure and forms no part of the claimed design. The portions of the graphical user interface shown in broken lines and the unshaded areas there within form no part of the claimed design. 

The ornamental design for a graphical user interface for a computer screen, as shown and described. 